Dongguan Tianrui Electronics Co., Ltd
Dongguan Tianrui Electronics Co., Ltd
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Stainless Steel Package Waterproof Probe NTC Digital Temperature Sensor DS18B20 Temperature Sensor
DS18B20 Temperature Senso
Output: Digital
Usage: Temperature measurement
Cable length: 0.5M,1M,2M or more
Theory: Resistance Sensor
Probe material: Stainless Steel
Accuracy: -10~+85℃,the accuracy is±0.5℃
Cable material: PVC, Silicone,PTFE
Description of DS18B20 Temperature Sensor
DS18B20 temperature sensor is composed of DALLAS, Stainless steel probe, cable and connectors. DS18B20 is a commonly used digital temperature sensor, and its output is digital signal. It has the characteristics of small size, low hardware overhead, strong anti-interference ability and high precision.
Specification of Digital DS18B20 Temperature Sensor
| Digital chip | DS18B20 |
| Power supply | 3.0~5.5VDC |
| Resolution ratio | 9~12 bit,Corresponding distinguish temperature are 0.5℃,0.25℃,0.125℃ and 0.0625℃ |
| Tolerance | -10℃ to +85℃ ±0.5℃ |
| Treatment proccess | Waterproof |
| Operating temperature range | -50~+125℃(when the temperature is -10~+85℃,the accuracy is±0.5℃) |
| Shell size | Diameter:¢6~¢9mm,length:10mm~1000mm |
| Wire | UL Series(such as UL1007),Supply line number, using temperature range, outside diameter and material requirements. |
| Shell material | Stainless steel |
| Connector | Molex,JST,DuPont,CWB,CJT,U type etc. |
| Drivepipe | Heat shrinkable tube;PVC tube,;glass fiber tube; |
| Connection mode | Black:GND Yellow:DATA Red:VDD+ |
Characteristic of Stainless Steel DS18B20 Temperature Sensor
1.Digital signal output
Wire interface Requires Only one port pin for communication. Requires no external components
2.High Accuracy
Operating temperature range:-55°C to +125°C (-67F to +257F), ±0.5°C accuracy from -10°C to +85°C
3.Data Line Power Supply
Can be powered from data line. Power supply range is 3.0V to 5.5V
4.Fast Response
Thermometer resolution is programmable from 9 to 12 bits.
5.Various Probe Design
Probe dimension :6*30mm, 6*50mm or customized
Application of Waterproof DS18B20 Temperature Sensor
Water Temperature Monitoring, HVAC, Medical Instrument, GPS Oil Tank Temperature Monitoring
FAQ of DS18B20 Temperature Sensor
Q: Where physically on the device does the temperature measurement take place?
A: The DS18B20 does not sense temperature directly through the package. For all package types, the DS18B20 senses temperature primarily through the GND pin. Ensuring a good thermal connection between the GND pin of the device and the heat source you wish to measure will provide the best results.
Q: Is there a way to extend the temperature range of the DS18B20?
A: No, there is not a way to increase the range it reads. The DS18B20 reads with an accuracy of ±0.5°C from -10°C to +85°C and ±2°C accuracy from -55°C to +125°C.
Q: Will a conformal coating affect the thermal response of the DS18B20?
A: A thin conformal coating will not affect the thermal response of the device.
Q: Using OneWireViewer, can more than one DS18B20 be logged?
A: Yes, every DS18B20 will have a file where you can store the data. Data will be received from one DS18B20 at a time.
Q: Can you power the DS18B20 from a 3V battery?
A: The DS18B20 can be powered from any source. Since batteries will dip in voltage, a nominal 3V battery may not always supply the minimum 3.0V the DS18B20 requires. We suggest a step-up voltage regulator is used to ensure the device is supplied within its rated voltage range of 3.0V to 5.5V.